Adjustable guide for hammers



. July 31, 1923.

Re. 15,666 PAUL ADJUSTABLE GUIDE FOR HAMMERS bri inai Filed May 5, 1917 19 I 4m 5 4 4 ,2: 25 1 T v i I v o uni I ta cred. member Reissued July 31, 1923.

--u-N1-T an STATES PATENT. OFFLCE STEPHEN PAUL, QIE LANSING, MICHIGAN THE MASSILLON FOUNDRY & MACHINE COMPANY, .OF MASSILIJON,

AD JU S'IABLE GUID'FJ FOR HAMMERSQ Original application filed'May 3, 1917, Serial No. 166g132. Renewed May 28,1920, Serial Not-385,067. Original No. 1,352,621, dated September 14, 1920; Applicationfor-reis'sue fi1ed=Ju1y 5; 1922. Srial hydraulic or steam hammer, such as used for for ing purposes.

volves means for minutely adjusting'guides cidental displacement during the reciprocation of a member, as ahammeihead, hetween the guides.

Specifically, my lnvention includes taperin'g members adaptedfor laterally adjusting guides to compensate for Wear and permit of the guidesbeing adjusted so as to insurean easy movement of "the recip-rocable member therebet'ween withoutany danger of a-bi-nding action or sticking of a-hammer head he a tween the guides. Associated with the tapering members are locking devices that positively hold the'members 1n adjusted position', and my invention will be fully under- 5 stood when reference is had to the drawing, 1 and the following detail description.

In the drawing,

Figure 1. is a frontelevation of a portion of a steam hammer, partly broken away and partly in section, showing the adjustable-1 guides and the means for adjusting said guides; Fig. 2 is an enlarged vertical sect onal view of a portion of the hammer housing;

Fig. 3 is a viewof the inner face of portion of the housing, I

"Fig.4 is an enlarged view" of the detached ig. 5is an enlarged frontelevation of a locking device for the tapered member;

.Fig. 6 is a rearelevation-of one of the same; j 60 Fig. 7 is a horizontal section of a portion of' ne of the guide locking devices; and

Fig. 8 is an enlarged horizontal sectional View of a portionof the hammer housing nssrsnon, BY uslin; ASSIGNMENTS, TO

B y invention in its broadest aspect in are rectangular seats 9 for non-rotatable for tapered members l6 having screw-threadshowing a guide adapted beadjusted by a tapered member; I I

In the drawing, 1 denotes the frames of a hammer housing and the confronting facesof these frames; are provided with pockets 2' containing wear plates 3 for adjusting wedges-for the guides c, of a=reciprocable hammer head 5 the lower ends of the pockets forming supporting bearings for the guides and the depth of the-pocketb eing suflicientto receive the guides completely plierlein for readily removing the hammer eac. I l

j The guides lhave screw bolts BeXtendingthrough openings 7of=theframes l. and said screw bolts have tapering heads 8 seateddn th guides et-so that should a screw; bolt be in ured or accidentally broken, it may be quickly removed, without discarding guide held thereby: v

At'the outerends of the frame opening. 7

washers 10,='said washers having rectangular ortions 11 adapted to engage in the seats9x he washers 10 also have annular recesses 12 to receive cylindrical portions 13 ofnuts- 1 1 screwed upon the bolt'sfi, and these nuts may be=adjnsted to lock the guides 4 after the same have been properly positioned I v The housing frames l above and below the bolt openings? are provided with transverse openings 15' having the" walls thereof in a plane with the wear platesB set in the'pOckets 2. The openings 15 provide clearance ed shanks 17 and as thesemembersandthe adjusting and locking devices-thereof are identical in construction, I deem it only necessary to describe thedevices of one of j the openings 15.

Each opening 15 is rectangular in "cross section with a screwthreaded shank l'l protrading therefrom. Eattending'v into the opening 15 is a non rotatable washer 18 hay-- Screwed on thethreaded shank 17 is a nut 20, andthe mg a side extension 19'.

washer 18' and the nut 20 are somewhat similar to the washer 10 and the nut ,14

previously mentioned. The nut 20, ho-w-- ever, has a ratchet portion 21, and adapted to engage the ratchet portion is a'- spring pressed pivoted pawl 22 carried by the side extension 19. of the washer-18. The pivoted pawl 22 is normally held in engagement with the ratchet portion 21 of the nut 20 by a spring 23 interposed between said pawl and a lug 24011 the side extension 19. Adjacent the pivoted pawl 22 is a pivoted cam member 25 and this cam member can be swung into engagement with the pawl 22 to hold said pawl out of engagement with the ratchet nut, with the spring 23 under compression. \Vith the parts in this position, as illustrated in Fig. 5, the ratchet nut 20 can be unscrewed, but when the ratchet nut is tightened, the cam member 25 is swung out of engagement with the pawl22, so that the pawl. will engage the ratchet nut and hold it. against counterclockwise rotation. In other words, the ratchet nut is held in the position to which it is adjusted.

With ratchet nuts on the threaded shanks 17 ofa tapered member, the tapered member can .be shifted in the pocket 2 and in a transverse opening 26 provided therefor in the guide at, and it is through the medium of the tapered member that the guide a can be shifted in and out of the pocket 2 so as to properly engage and guide the hammer head 5.

By using four of the tapered members 16 there may be a uniform adjustment of the guides, thus maintaining the faces of said guides in perfect parallelism to insure nonfrictional movement of the hammer head be-' tween said guides; it being'understood that the guides themselves will be out of parallelism with respect to their original positions, after their faces have been worn by the hammer.

It will be understood that the openings 7 in the housing frames are larger'than the shanks of the screw bolts 6, so that the boltshanks have sufficient play in the openings in order that theguide's 4 can be oscillated, either by a fiexion of the bolt shanks or a loosening of the nuts 14:, to the slight extent required for an adjustment of the guides by the tapered members; and that the bolts 6 hold the guides l agalnst the tapered member 16 and cooperate therewith in preventing accidental displacement of the guides during the reciprocation of the hammer head 5.

It is apparent that the tapered member 16 constitutes means in proximity to the ends of the guides for laterally adjusting the same within the pockets 2 of the hammer housing and that the screw bolts 6 and the nuts 14 constitute locking means, interposed between the tapered members and intermediate the ends of the guides a, for holding said guides after having been adjusted by the tapered members.

While in the drawings there is illustrated a preferred embodiment of my invention, it is to be understood that the structural elements are susceptible to such variations and housing frames for a reciprocable member in the housing, tapered members in some of the frame openings and having screw bolts protruding therefrom and adapted for adjusting said guides, and screw bolts carried by said guides and protruding from the other openings and adapted for locking said guidesin adjusted positions, of means for adjusting all of said screw bolts, said means comprising washers having rectangular portions to, engage in the rectangular openings of said frames, ratchet nuts rotatable in said washers and screwed on said bolts, spring pressed pawls on said washers normally engaging said ratchet nuts, and cam members on said washers adapted to be manually swun into engagement with said pawls to hofd said pawls out of engagement with said nuts.

2. In a guide for drop hammers, a drop hammer side frame having a pocket with a bearing face at the bottom of the pocket, a guide adapted to fit in the pocket and to rest upon the bearing face, a retaining device for the guide and independent adjustments for the upper and lower parts of the guide to adjust the guide out of parallelism with its initial position in the adjusted positions. 3. In a guide for drop hammers, a drop hammer side frame having a pocket, a guide adapted tofit in the pocket, a retaining device for the guide permitting it to oscillate in the pocket and independent adjusting means for upper and lower parts of the guide to adjust it, and capable of oscillating it in the pocket.

4. In a guide for drop hammers, a drop hammer side frame having a pocket, a. guide adapted to rest within the pocket, its weight being adapted to be supported by the bottom of the pocket, a retaining device for said guide and independent wedge adjustments for the upper and lower parts of the guide.

5. In a guide for drophammers, a drop hammer side frame having a pocket, a guide withdrawable into the pocket, a retaining device permitting it to oscillate in the pocket and independent wedge adjustments for the upper and lower parts of the guide, transversely movable with respect to the guide for effecting the adjustment by oscillating the guide.

6. In a guide for drop hammers, a drop hammer side frame having a pocket, a guide withdrawable vinto the pocket, a retaining device, for said guide connected near the middle thereof and independent wedge adwithdrawabl'einto ,the

device for said'guide an independent Wedge I and adjustingmechanisms for the upper and justing mechanisms for the upper and lower parts of the guide, located above and below the retaining device respectively and. transversely'movable'with respect to the guide to efi'ectxthe adjustments; i

7.111; a uidef for drop hammers, a. drop hammer, side frame having a pocket, a guide lower parts of the/guide transversely movable with respectto the guide and free from the retaining device for effecting the adjustment and removable topermit withdrawal of the guide into the pocket.

8. Ina guide for drop hammers la drop i ocket, a retainingv 7 adj usting; the wedges.

hammer side frame having a pocket,a guide" adapted to rest in the pocket and capable of entire v withdrawal therein, retaining means for'holding the guide in position, and independent adjustments for the upper and lower guide to rest Within the pocket.

9; The combination infa steam hammer,

'de oscillatably connectj of a-standard; a ed on the standar a hammer head; means for-reciprocating the head; a wedge located ba-ck'of each end of a guide; and means for v parts of the guide, capable of ithdrawal laterally of the guide to permit the r -1 IIYSTEPHEN PAUL. 

